$$3\sqrt{ {72.9\over0.4096}}$$ is equal to : 

Find the value of given expression. 

[76 – {90 ÷ 5 ⨯ (24 – 36 ÷ 3) ÷ 3}] 

If (a + b):(b + c):(c + a) = 7:6:5 and a + b + c = 27, then what will be the value of 1/a: 1/b :1/c?

The value of $${\sqrt{40+\sqrt{9\sqrt{81}}} }$$ is

The value of   $$ {(0.03)^2 - (0.01)^2}\over 0.03-0.01 $$

Direction : What value should come in the place of question mark (?) in the following questions?

125% of 2440 – 75% of 1856 = ?

For what value of m will the system of equations 18x-72y+13=0 and 7x-my-17=0 have no solution?

What is the value of $${0.74×1.23×0.13\over (0.37)^{3}+(0.41)^{3}-8(0.39)^{3}}$$ ?